Chock-block.



'L. 'L. TYLER.

OHOGK BLOCK. APPLICATION FILED 00T.14, 1911.

Patented Dec. 17, 1912.

3 SHEETS-SHEET 1.

INVENTOR WITNESSES:

GHOGK BLOCK.

APPLICATION FILED 00114, 1911.

Patented Dec. 17, 1912.

3 SHEETS-SHEET 2.

WITNESSES:

BY I

ATTORNEY COLUMBIA PLANOGRAPH co.. WASHINGTON. D. c.

L. L. TYLER.

011001: BLOCK.

APPLIGATION FILED OCT. 14, 1911. 1,047,465. Patented Dec. 17,1912.

3 SHEETS-SHEET 3.

LEWIS I. TYLER, OF TACOMA, WASHINGTON.

CHOGK-IBLOOK.

Specification of Letters Patent.

Application filed October 14, 1911.

Patented Dec. 17,1912.

Serial No. 654,614.

To all whom it may concern:

Be it known that I, LEWIS L. TYLER, a citizen of the United States, residing at Tacoma, in the county of Pierce and State of l/Vashington, have invented a new and useful Chock-Block, of which the following is a specification.

This invention relates to chock blocks and similar devices for preventing logs from rolling ofi a car or other platform, and other similar uses, and has for its objects to provide a mechanism whereby the chock block is held and locked in operative position'so that the pressure of the logs thereon will not move it and so that if the logs are shifted lengthwise of the car the block cannot be overturned; whereby said chock block can be easily unlocked whenever desired from the other side of the car; and whereby when said block is thus released it falls into its inoperative position from which it cannot be dropped and lost.

Further objects are to provide a mechanism which is cheap, strong, durable and which can be quickly mounted on a car without materially damaging its frame.

I attain these and other objects by the devices, mechanisins and arrangements illustrated in the accompanying drawings, in which- Figures 1 and 2 are respectively a plan and a cross-section of a portion of a car equipped with my improved chock blocks, the block on the right-hand-side being in operative position while that on the left-handside is in inoperative position; Figs. 3 and 4 are respectively side and end elevations of the chock block mounted on a car showing it in its operative position; and Figs. 5 and 6 are vertical sections thereof showing it in operative and inoperative positions respectively.

Similar numerals of reference refer to similar parts throughout the several views.

The car is provided with suitable sills 1, covered by a deck 2, and at suitable intervals thereon heavy bunkers 3 are secured above the deck transversely of the car. The chock blocks may be mounted on the deck 2 in any desired position though I prefer to mount them near the bunkers 3. A plate 4, secured in the desired position by means of suitable bolts 5 or other fasteners, forms the base on which the chock block works and to which it is secured. This plate 4 has a bracket 6 secured thereto and extending downward through the deck 2, said bracket being adapted to support the manually controlled lock-bar 7 which is pivoted thereto, and by means of which the latch holding the check block is held or released. The lock bar 7 extends upward from the pivot by which it is secured to the bracket and is controlled by a rod 8 secured to it which passes to the other side of the car where it engages a plate 9 by a notch 10 formed in the rod, or it may be secured by any other suitable means. The plate 4 has a pair of guides 11 on each side said guides being adapted to engage the heel of the chock block when in its operative position and each having an overhanging lug 12 under which the corners of the heel of the chock block engage when it is in its operative position. In the center of the forward edge of the plate 4 is formed an upward extension or lug 13 having a rearward-extending tongue 14 under which the locking link slides as the chock block falls from its operative to'its inoperative position. A short forward-extending tongue 15 is also formed on the lug 13 and is adapted to pass through a hole in the front side of the chock block when it is in its operative position. A pair of guides 16 are formed on the plate 4 on each side of the front of the chock block. The forward edge of the plate 4 may be beveled or rounded off as shown. A pair of lugs 17 are formed on the plate 4 in such position as to engage the heel of the chock block to prevent its being pushed back on the car when the logs are being loaded on the car over the raised block.

The chock block is provided with a front side 18 engaging, in the operative position, the front end of the plate 4 between the guides 16 and adapted, in the inoperative position, to hang over the edge of the car. This side 18 has a hole 19 formed therein, wherein the tongue 15 of the lug 13 engages when in the operative position, thus preventing the chock block from tipping up in the act of rolling logs on the car thereover and preventing the chock block from turning over sidewise when the logs are shifted lengthwise of the car. The upper or rearward side 20 of the chock block is formed with a curved surface but with its lower rearward corners 21 flat to engage under the lugs 12 on the guides 11. A slot 22 extends upward in the side 20 from the lower edge or heel thereof and is adapted to allow the lock link to pass therethrough when in the operative position andto allow the tongue 14 to pass through it when in the inoperative position. The general form of the check block is similar to an inverted V. The curved side of the chock block is made in this shape in order that no corners will catch the logs if they are shifted lengthwise of the car and in order to provide room thereunder for the lug 13 and the lock link. A pair of brackets 23 are formed on the under side of the side 20, on each side of the central slot 22, and the lock link 24 is pivotally secured therebetween to the chock block by means of a suitable pin. The said lock link 24 extends rearwardly through the slot 22 and is provided with a hole 25 adapted to receive, when in its operative position, the end of the latch and the link 24 is adapted to pass under the tongue 14 of the lug 13 when in its inoperative position.

The latch 26 is pivoted to the plate 4 and extends upward through a hole therethrough and downward, below the pivot, through the deck 2 into engagement with the lock bar 7 When the latch 26 is vertical the upper end thereof engages in the hole 25 in the lock link and holds the chock block in its operative position, and it is itself held in this vertical position by the lock bar 7, but if the rod 8 be pulled toremove the bar 7 from the path of the end of the latch 26, the latch will turn on itspivot thus releasing the link 24 and allowing the chock block to slide on the plate 4 under the pressure of the logs.

The operation of my improved chock block is briefly described as follows :W'hen the block is in inoperative position the'front side 18 thereof hangs over the edge of the car, the tongue 14 lies in the slot 22, and the lock link 24 lies under the tongue 14. In this position the curved rear side of the block is substantially horizontal, the raised center being about on a level with the bunkers 3 and the edges thereof lying on the plate 4 between the guides 16. The chock block is placed in operative position by raising the side 18 and pushing back thereon so that the heel of the side 20 will engage the lugs 17 and the corners thereof will engage under the lugs 12, and so that the tongue 15 will enter the hole 18. In this position then, the lock link 24 will lie so that the upper end of the latch 26 will pass through the hole 25 therein and, if the rod 8 be pushed inward, the bar 7 will hold the latch in this position.

Having described my invention what I claim is:

1. In a chock block, the combination of a plate secured to the car but detached therefrom; a block loosely supported by said plate; a lock link pivoted to said block; a latch engaging said link to prevent the outward movement of. the block; and lugs formed on said plate and engaging said block to prevent vertical and sidewise movement thereof on the plate.

2. In a chock block, the combination of a plate secured to the car; a block loosely supported by said plate; a lock link pivoted to said block; a latch engaging said link to prevent the outward movement of the block; a lock bar pivoted to the car and engaging the latch to prevent its removal from engagementwith the link; means for removing said lock bar from engaging said latch; and lugs formed on said plate and engaging said block to prevent vertical and sidewise movement thereof on the plate.

3. In a chock block, the combination with a plate secured to the car; a block loosely supported by said plate and having ahole formed in its front side; a lock link pivoted said block; a latch engaging said link to prevent the outward movement of the block; a lug formed on said plate to prevent the inward movement of said block; a tongue formed on said lug and passing through the hole in said front side of the block to prevent the upward movement of the outer side of said block; and lugs formed on said plate and engaging the sides of said block to prevent the sidewise movement of the block thereon.

4. In a chock block, the combination of a plate secured to the car; a block loosely supported by said plate and having its upper surface curved; a lock link pivoted to said block; a latch engaging said link to prevent the outward movement of the block;

lugs formed on said plate and engaging the sides of said block to prevent the sidewise movement of the block on the plate; and

lugs extending over the corners of. the heel of said block to prevent the upward movement of either side of said block.

LEWIS L. TYLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

v Washington, D. C. 

